I was in the middle of system restore when my hp elitebook 2760p shut down and won't boot again. The only thing it does is flash the standby led and nothing else. I have tried a different battery but results are still the same. I have even tried hard boot by holding the power switch for 30 sec without the battery and charger and then inserting the batttery and connecting the charger and then booting but still nothing. Please help...